Operating reliably under high pressures, elevated temperatures, and demanding process conditions requires robust fabrication. Since 1976, N.J. McCutchen, Inc. has delivered ASME pressure vessel fabrication backed by certified craftsmen and dedicated engineering support.
N.J. McCutchen’s Fabrication Capabilities
Located in Stockton, CA, our 50,000-sq.-ft. facility is equipped to manage the entire pressure vessel fabrication process, helping maintain quality and schedule control throughout production.
Our facility delivers code-compliant manufacturing for diverse industrial specifications:
- ASME Section VIII, Division 1 vessels. Fired and unfired pressure vessels rated for internal or external pressures exceeding 15 psig.
- UL-142 double-wall skid tanks. Aboveground storage configurations from 150 to 12,000 gallons with built-in secondary containment for combustible liquids.
- API 650 general-purpose tanks. Welded flat-bottom vertical storage assets optimized for refineries, terminals, and pipeline applications.
- Code and non-code vessels. Flexible design and manufacturing options tailored to exact client prints, whether ASME-stamped or non-stamped.
Our in-house services span machining, welding, NDE inspection, painting, and sandblasting. This approach gives us greater control over quality and scheduling than multi-vendor projects.
Certifications That Carry Weight
Industrial compliance demands validated engineering metrics and verified quality frameworks. N.J. McCutchen maintains active authorization stamps recognized by procurement managers, field inspectors, and safety engineers across the sector:
| Certification | Scope |
| ASME U stamp | Authorization to fabricate pressure vessels per BPVC Section VIII |
| ASME S stamp | Authorization to manufacture and assemble power boilers per BPVC Section I |
| National Board R stamp | Authorization for repair and alteration of pressure vessels and boilers |
| UL-142 certification | Aboveground flammable/combustible liquid storage tanks |
These certifications reflect ongoing compliance with third-party audits, documented quality systems, and established fabrication standards. They help ensure consistency throughout the manufacturing process. The ASME code pressure vessels we produce are traceable back to a documented quality process tied to these certifications.
See the full scope of our ASME Code Work services for more details on what each stamp covers.
What to Look for in an ASME Pressure Vessel Fabricator
Choosing the right fabricator affects more than the initial build. It affects long-term reliability, regulatory standing, and your ability to respond when maintenance or repair is needed.
Stamp Authority and Scope
Confirm the fabricator holds active ASME stamps that match your vessel type and code division. A shop with U, S, and R stamps can cover fabrication, boiler assembly, and future repair under one roof.
Material Handling and Metallurgical Range
ASME pressure vessels are fabricated from a range of ferrous and non-ferrous alloys. A capable shop can work across common metallurgies and advise on material selection based on your operating environment, pressure ratings, and corrosion requirements.
Welding and NDE Expertise
BPVC Section IX defines qualification requirements for welding procedures and personnel. Fabricators should align welding qualifications with project materials and joint configurations. In-house NDE, including radiographic and ultrasonic testing, can improve control over quality and scheduling.
Documentation and Traceability
ASME code work carries a documentation burden that extends from design records through material certifications, inspection reports, and data reports. This level of control is typically found in fabricators that build compliance into their standard workflow.
Repair and Maintenance Capability
The R Stamp matters when your vessel needs field repair or alteration. A fabricator who can return to your site or receive your vessel for repair under the same quality system that built it is a long-term asset.
Partner with N.J. McCutchen for Long-Term Vessel Integrity
Four decades of ASME fabrication work produce a depth of process knowledge that specification sheets can’t fully capture. Our team of certified welders, machinists, and fabricators has worked across a wide range of vessel applications in different industries.
Our formalized quality control system implements strict material traceability and precise welding procedures to ensure code compliance at scale. By keeping the entire lifecycle in-house, including engineered drafting, non-destructive examination (NDE), pressure testing, and final documentation turnover, we eliminate multi-vendor lead-time delays.
If your project requires ASME Section VIII, Division 1 vessels, UL-142 tanks, or API 650 storage, or if you’re evaluating a provider of ASME pressure vessel fabrication services for an ongoing program, contact us directly to discuss your requirements.